The book of scavengers in the financial crisis: 50 mineral water bottles make a dollar, and the rest 70% are long tail words

The book of scavengers in the financial crisis: 50 mineral water bottles make a dollar, and the rest 70% are long tail words

The study was conducted by scientists from MIT, the University of Tennessee and the U.S. Naval Research Laboratory，The study was conducted by scientists from MIT, the University of Tennessee and the U.S. Naval Research Laboratory

The study was conducted by scientists from MIT, the University of Tennessee and the U.S. Naval Research Laboratory，The study was conducted by scientists from MIT, the University of Tennessee and the U.S. Naval Research Laboratory